Abstract: A high voltage cabtire cable 10 includes power cores 20 each of which has an inner semi-conductive layer 22, an insulation 23, and an outer semi-conductive layer 24 successively provided in this order around a copper conductor 21, and other cores 25, 30 stranded together with the power core 20, an inner sheath 11 and an outer sheath 13 successively provided in this order around peripheries of the power core 20 and the other cores 25, 30 stranded together, in which an adhesion force between the other cores 25, 30 and the inner sheath 11 is greater than an adhesion force between the power cores 20 and the inner sheath 11.

Abstract: A radiation-proof sheath material includes a polymer material containing molecular chains of ethylene units as a main component in which side chain groups are randomly distributed and cross-linked, an antioxidant, a processing aid, and a flame retardant. The polymer material includes chlorinated polyethylene containing chloro groups in the side chain groups.

Abstract: A radiation resistant composition includes 100 parts by weight of a polymer, 5 to 80 parts by weight of an aromatic series process oil that a polycyclic aromatic (PCA) extract by an IP 346 method (DMSO extraction) is not more than 3% and an aromatic compound content is not less than 20% by a Kurtz analysis, and a radiation resistance imparting agent. The polymer is cross-linked or vulcanized. A wire or a cable includes an insulation and/or a sheath material including the radiation resistant composition.

Abstract: A radiation-proof resin composition includes a polymer containing chlorine, a radiation resistance providing agent for providing the polymer with a radiation resistance, an amorphous inorganic material for capturing an ionic component generated in the polymer by radiation application, and a reinforcing material for reinforcing a mechanical strength of the polymer. An amount of the reinforcing material is not more than that of the amorphous inorganic material.

Abstract: A high voltage cabtire cable 10 includes power cores 20 each of which has an inner semi-conductive layer 22, an insulation 23, and an outer semi-conductive layer 24 successively provided in this order around a copper conductor 21, and other cores 25, 30 stranded together with the power core 20, an inner sheath 11 and an outer sheath 13 successively provided in this order around peripheries of the power core 20 and the other cores 25, 30 stranded together, in which an adhesion force between the other cores 25, 30 and the inner sheath 11 is greater than an adhesion force between the power cores 20 and the inner sheath 11.

Abstract: A metallic conductor and an insulator provided at an outer periphery of the metallic conductor for coating the metallic conductor constitutes an insulated wire or cable. The insulator has a reactor blended type polyolefin-based thermoplastic resin containing 51-85 mol % per monomer unit of the crystalline polypropylene. In the insulator used in a non-halogen flame retardant wire or cable, 40 to 300 pbw of a metallic hydroxide is added to 100 pbw of a blended composition. In the blended composition, the reactor blended type polyolefin-based thermoplastic resin containing 51-85 mol % per monomer unit of the crystalline polypropylene is greater than 50 pbw and less than 100 pbw, and a polyolefin is greater than 0 pbw and not greater than 50 pbw.

Abstract: A radiation resistant composition includes 100 parts by weight of a polymer, 5 to 80 parts by weight of an aromatic series process oil that a polycyclic aromatic (PCA) extract by an IP 346 method (DMSO extraction) is not more than 3% and an aromatic compound content is not less than 20% by a Kurtz analysis, and a radiation resistance imparting agent. The polymer is cross-linked or vulcanized. A wire or a cable includes an insulation and/or a sheath material including the radiation resistant composition.

Abstract: A radiation-proof sheath material includes a polymer material containing molecular chains of ethylene units as a main component in which side chain groups are randomly distributed and cross-linked, an antioxidant, a processing aid, and a flame retardant. The polymer material includes chlorinated polyethylene containing chloro groups in the side chain groups.

Abstract: A radiation-proof resin composition includes a polymer containing chlorine, a radiation resistance providing agent for providing the polymer with a radiation resistance, an amorphous inorganic material for capturing an ionic component generated in the polymer by radiation application, and a reinforcing material for reinforcing a mechanical strength of the polymer. An amount of the reinforcing material is not more than that of the amorphous inorganic material.

Abstract: An electric wire and cable according to the present invention comprises a sheath made of a radiation-resistant non-halogen flame-retardant resin composition in which the radiation-resistant non-halogen flame-retardant resin composition includes one to 30 parts by weight of aromatic amine antioxidant with a melting point of 40° C. or higher and 50 to 300 parts by weight of metal hydroxide blended into 100 parts by weight of ethylene polymer.

Abstract: An electric wire and cable according to the present invention comprises a sheath made of a radiation-resistant non-halogen flame-retardant resin composition in which the radiation-resistant non-halogen flame-retardant resin composition includes one to 30 parts by weight of aromatic amine antioxidant with a melting point of 40° C. or higher and 50 to 300 parts by weight of metal hydroxide blended into 100 parts by weight of ethylene polymer.

Abstract: A metallic conductor and an insulator provided at an outer periphery of the metallic conductor for coating the metallic conductor constitutes an insulated wire or cable. The insulator has a reactor blended type polyolefin-based thermoplastic resin containing 51-85 mol % per monomer unit of the crystalline polypropylene. In the insulator used in a non-halogen flame retardant wire or cable, 40 to 300 pbw of a metallic hydroxide is added to 100 pbw of a blended composition. In the blended composition, the reactor blended type polyolefin-based thermoplastic resin containing 51-85 mol % per monomer unit of the crystalline polypropylene is greater than 50 pbw and less than 100 pbw, and a polyolefin is greater than 0 pbw and not greater than 50 pbw.

Abstract: A flame retardant electrical insulating composition having an antifungal action comprises 100 parts by weight of a polyolefin, 50-300 parts by weight of a metal hydroxide, and at least 0.2 parts by weight of an amine compound. Also, a flame retardant electrical insulating composition having an antifungal action comprises 100 parts by weight of an ethylene-vinyl acetate copolymer with a vinyl acetate content of at least 20 wt % or an ethylene-ethyl acrylate copolymer with an ethyl acrylate content of at least 20 wt %, 50-300 parts by weight of a metal hydroxide, at least 0.2 parts by weight of an amine compound, and at least 0.5 parts by weight of a hydroxyl group containing lubricant.